


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tucson, AZ
Issued by NWS Tucson, AZ
617 FNUS55 KTWC 062148 FWFTWC Fire Weather Planning Forecast for Southeast Arizona National Weather Service Tucson AZ 248 PM MST Sat Sep 6 2025 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 20-FOOT WIND FORECAST OF `LIGHT WINDS` INDICATES MAINLY TERRAIN DRIVEN WINDS +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...Minimum relative humidities 25 to 40 percent through the weekend, lowering to 15 to 30 percent much of next week. Widely scattered showers and thunderstorm chances this evening, then drier air Sunday with just enough moisture for a slight chance of showers and thunderstorms. Dry conditions prevail Monday and Tuesday, with slight chances of showers and thunderstorms mainly east of Tucson mid to late week as some moisture returns. Surface winds mainly light through the forecast period, except gusty and erratic in or near any thunderstorms. High temperatures will be below normal this weekend then warming back to seasonable levels for most of the week. AZZ150-071200- Arizona Fire Weather Zone 150 Sonoran FDRA-Most of Pima County-South Central Pinal County- Tohono O`odham Nation-Tucson Metropolitan area-TDC- 248 PM MST Sat Sep 6 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........68 to 78 degs. 24 hr Trend...........Up 1 deg. * Max Humidity.............77 to 87 pct. 24 hr Trend...........Down 1 pct. * Wind (20 ft/10-min avg)..Southwest around 10 mph in the evening becoming light. * 10000 ft MSL Wind........East 5 to 10 mph. .SUNDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (25-35 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Max Temperature..........89 to 99 degs. 24 hr Trend...........Up 3 to 6 degs. * Min Humidity.............33 to 43 pct. 24 hr Trend...........Down 5 to 9 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 10 mph in the afternoon. * 10000 ft MSL Wind........South 5 to 10 mph. * Mixing height............8582 ft AGL. * Transport winds..........East 6 knots shifting to the northwest 7 knots in the afternoon. * Ventilation Category.....Good (60074 knot-ft). .SUNDAY NIGHT... * Sky/Weather..............Partly cloudy (20-30 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Min Temperature..........70 to 80 degs. 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............62 to 72 pct. 24 hr Trend...........Down 13 to 17 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph in the evening becoming light. * 10000 ft MSL Wind........South 5 to 10 mph. .MONDAY... * Sky/Weather..............Mostly sunny (5-15 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........92 to 102 degs. 24 hr Trend...........Up 1 to 4 degs. * Min Humidity.............24 to 34 pct. 24 hr Trend...........Down 6 to 10 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 10 mph in the afternoon. * 10000 ft MSL Wind........Southwest 5 to 10 mph. * Mixing height............10364 ft AGL. * Transport winds..........North 6 knots shifting to the west 7 knots in the afternoon. * Ventilation Category.....Very good (72548 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 70 to 80. Highs 94 to 104. Light winds. Minimum Humidity 19 to 29 pct. .WEDNESDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 69 to 79. Highs 91 to 101. South wind around 15 mph. Minimum Humidity 20 to 30 pct. .THURSDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 66 to 76. Highs 89 to 99. South wind around 15 mph. Minimum Humidity 19 to 29 pct. .FRIDAY...Mostly clear. Lows 63 to 73. Highs 89 to 99. .SATURDAY...Mostly clear. Lows 63 to 73. Highs 91 to 101. NOTE TO USERS - ZONE 150 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE TUCSON INTERNATIONAL AIRPORT LOCATION (2550 MSL) $$ AZZ151-071200- Arizona Fire Weather Zone 151 Western half Desert Grasslands FDRA including elevations up to 5500 feet in Southeast corner of Pinal County- Extreme Eastern Pima County-Western third of Cochise County- Santa Cruz County-TDC- 248 PM MST Sat Sep 6 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (30-40 pct). Chance of showers and slight chance of thunderstorms. * Chance of Precip.........30 pct. * Chance of Thunder........20 pct. * Min Temperature..........60 to 70 degs. 24 hr Trend...........Little change. * Max Humidity.............80 to 90 pct. 24 hr Trend...........Down 4 to 8 pct. * Wind (20 ft/10-min avg)..Southwest around 10 mph in the evening becoming light. * 10000 ft MSL Wind........North around 5 mph shifting to the east after midnight. .SUNDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........84 to 94 degs. 24 hr Trend...........Up 3 to 6 degs. * Min Humidity.............33 to 43 pct. 24 hr Trend...........Down 10 to 14 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 10 mph in the afternoon. * 10000 ft MSL Wind........Southeast around 5 mph shifting to the southwest in the afternoon. * Mixing height............7559 ft AGL. * Transport winds..........North 6 to 8 knots. * Ventilation Category.....Good (60472 knot-ft). .SUNDAY NIGHT... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........62 to 72 degs. 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............68 to 78 pct. 24 hr Trend...........Down 13 to 17 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph in the evening becoming light. * 10000 ft MSL Wind........South 5 to 10 mph. .MONDAY... * Sky/Weather..............Mostly sunny (15-25 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........87 to 97 degs. 24 hr Trend...........Up 1 to 4 degs. * Min Humidity.............24 to 34 pct. 24 hr Trend...........Down 7 to 11 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 10 mph in the afternoon. * 10000 ft MSL Wind........Southwest 5 to 10 mph. * Mixing height............10311 ft AGL. * Transport winds..........Northwest 6 to 8 knots. * Ventilation Category.....Very good (82488 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 63 to 73. Highs 88 to 98. Light winds. Minimum Humidity 22 to 32 pct. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 62 to 72. Highs 87 to 97. South wind around 15 mph. Minimum Humidity 25 to 35 pct. .THURSDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 85 to 95. South wind around 15 mph. Minimum Humidity 26 to 36 pct. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 59 to 69. Highs 85 to 95. .SATURDAY...Mostly clear. Lows 58 to 68. Highs 87 to 97. NOTE TO USERS - ZONE 151 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE BUENOS AIRES N.W.R. LOCATION (3500 MSL) $$ AZZ152-071200- Arizona Fire Weather Zone 152 Eastern half Desert Grasslands FDRA including elevations up to 5500 feet in Southwest Graham County and Eastern two thirds of Cochise County-Southern San Carlos Reservation- Southern Greenlee County below 5000 feet-TDC- 248 PM MST Sat Sep 6 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........59 to 69 degs. 24 hr Trend...........Little change. * Max Humidity.............76 to 86 pct. 24 hr Trend...........Down 5 to 9 pct. * Wind (20 ft/10-min avg)..West around 10 mph in the evening becoming light. * 10000 ft MSL Wind........Northwest around 5 mph shifting to the northeast after midnight. .SUNDAY... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Max Temperature..........85 to 95 degs. 24 hr Trend...........Up 3 to 6 degs. * Min Humidity.............27 to 37 pct. 24 hr Trend...........Down 11 to 15 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 10 mph in the afternoon. * 10000 ft MSL Wind........East around 5 mph shifting to the southwest in the afternoon. * Mixing height............7501 ft AGL. * Transport winds..........Northwest 7 to 9 knots. * Ventilation Category.....Good (67509 knot-ft). .SUNDAY NIGHT... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........61 to 71 degs. 24 hr Trend...........Up 1 deg. * Max Humidity.............60 to 70 pct. 24 hr Trend...........Down 17 to 21 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph. * 10000 ft MSL Wind........West around 5 mph shifting to the southwest after midnight. .MONDAY... * Sky/Weather..............Mostly sunny (15-25 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........87 to 97 degs. 24 hr Trend...........Up 1 to 4 degs. * Min Humidity.............20 to 30 pct. 24 hr Trend...........Down 4 to 8 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph in the afternoon. * 10000 ft MSL Wind........Southwest 5 to 10 mph. * Mixing height............9236 ft AGL. * Transport winds..........West 7 to 9 knots. * Ventilation Category.....Very good (83124 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 62 to 72. Highs 88 to 98. Light winds. Minimum Humidity 20 to 30 pct. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 62 to 72. Highs 87 to 97. South wind around 15 mph. Minimum Humidity 22 to 32 pct. .THURSDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 60 to 70. Highs 85 to 95. Light winds. Minimum Humidity 23 to 33 pct. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 59 to 69. Highs 84 to 94. .SATURDAY...Mostly clear. Lows 59 to 69. Highs 86 to 96. NOTE TO USERS - ZONE 152 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL) $$ AZZ153-071200- Arizona Fire Weather Zone 153 Northern Graham County-Northern Greenlee County- White and Gila Mountains-Apache Sitgreaves NF- Southern San Carlos Reservation above 5000 feet-SDC- 248 PM MST Sat Sep 6 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........51 to 61 degs. 24 hr Trend...........Little change. * Max Humidity.............75 to 85 pct. 24 hr Trend...........Down 3 to 7 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph in the evening becoming light. * 10000 ft MSL Wind........Northwest around 15 mph shifting to the north after midnight. .SUNDAY... * Sky/Weather..............Mostly sunny (15-25 pct) then becoming partly cloudy (40-50 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........75 to 85 degs. 24 hr Trend...........Up 3 to 6 degs. * Min Humidity.............31 to 41 pct. 24 hr Trend...........Down 12 to 16 pct. * Wind (20 ft/10-min avg)..Light winds becoming west around 10 mph in the afternoon. * 10000 ft MSL Wind........East around 5 mph shifting to the southwest in the afternoon. * Mixing height............8924 ft AGL. * Transport winds..........North 7 knots shifting to the west 10 knots in the afternoon. * Ventilation Category.....Very good (89240 knot-ft). .SUNDAY NIGHT... * Sky/Weather..............Partly cloudy (30-40 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........54 to 64 degs. 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............56 to 66 pct. 24 hr Trend...........Down 16 to 20 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph. * 10000 ft MSL Wind........Northwest 5 to 10 mph. .MONDAY... * Sky/Weather..............Mostly sunny (15-25 pct). * Chance of Precip.........10 pct. * Chance of Thunder........0 pct. * Max Temperature..........78 to 88 degs. 24 hr Trend...........Up 1 to 4 degs. * Min Humidity.............24 to 34 pct. 24 hr Trend...........Down 6 to 10 pct. * Wind (20 ft/10-min avg)..Light winds becoming southwest around 10 mph in the afternoon. * 10000 ft MSL Wind........Southwest 5 to 10 mph. * Mixing height............9748 ft AGL. * Transport winds..........Northwest 7 knots shifting to the southwest 9 knots in the afternoon. * Ventilation Category.....Very good (87732 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 53 to 63. Highs 77 to 87. Light winds. Minimum Humidity 21 to 31 pct. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 54 to 64. Highs 76 to 86. South wind around 15 mph. Minimum Humidity 26 to 36 pct. .THURSDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 52 to 62. Highs 74 to 84. Southeast wind around 15 mph. Minimum Humidity 27 to 37 pct. .FRIDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 51 to 61. Highs 73 to 83. .SATURDAY...Mostly clear. Lows 50 to 60. Highs 74 to 84. NOTE TO USERS - ZONE 153 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL) $$ AZZ154-071200- Arizona Fire Weather Zone 154 Forest Woodlands FDRA including the Sky Islands of Southeast Arizona above 5500 feet-Coronado NF-TDC- 248 PM MST Sat Sep 6 2025 .TONIGHT... * Sky/Weather..............Partly cloudy (35-45 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........20 pct. * Chance of Thunder........20 pct. * Min Temperature..........54 to 64 degs. 24 hr Trend...........Little change. * Max Humidity.............79 to 89 pct. 24 hr Trend...........Down 7 to 11 pct. * Wind (20 ft/10-min avg)..West around 10 mph. * 10000 ft MSL Wind........North around 5 mph shifting to the northeast after midnight. .SUNDAY... * Sky/Weather..............Partly cloudy (30-40 pct). Slight chance of showers and thunderstorms. * Chance of Precip.........10 pct. * Chance of Thunder........10 pct. * Max Temperature..........74 to 84 degs. 24 hr Trend...........Up 3 to 6 degs. * Min Humidity.............40 to 50 pct. 24 hr Trend...........Down 14 to 18 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 10 mph in the afternoon. * 10000 ft MSL Wind........Southeast around 5 mph shifting to the southwest in the afternoon. * Mixing height............7678 ft AGL. * Transport winds..........Northwest 6 to 8 knots. * Ventilation Category.....Good (53746 knot-ft). .SUNDAY NIGHT... * Sky/Weather..............Partly cloudy (25-35 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Min Temperature..........56 to 66 degs. 24 hr Trend...........Up 1 to 4 degs. * Max Humidity.............62 to 72 pct. 24 hr Trend...........Down 15 to 19 pct. * Wind (20 ft/10-min avg)..Northwest around 10 mph. * 10000 ft MSL Wind........West around 5 mph shifting to the south after midnight. .MONDAY... * Sky/Weather..............Mostly sunny (5-15 pct) then becoming partly cloudy (20-30 pct). * Chance of Precip.........0 pct. * Chance of Thunder........0 pct. * Max Temperature..........76 to 86 degs. 24 hr Trend...........Up 2 to 5 degs. * Min Humidity.............29 to 39 pct. 24 hr Trend...........Down 9 to 13 pct. * Wind (20 ft/10-min avg)..Light winds becoming northwest around 10 mph in the afternoon. * 10000 ft MSL Wind........Southwest 5 to 10 mph. * Mixing height............10383 ft AGL. * Transport winds..........Northwest 7 to 8 knots. * Ventilation Category.....Very good (77872 knot-ft). .Forecast days 3 through 7...... Winds in Days 3 through 5 are surface 20 ft/10-min avg .TUESDAY...Mostly clear. Lows 57 to 67. Highs 78 to 88. Light winds. Minimum Humidity 25 to 35 pct. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 57 to 67. Highs 77 to 87. South wind around 15 mph. Minimum Humidity 29 to 39 pct. .THURSDAY...Partly cloudy. Slight chance of showers and thunderstorms. Lows 55 to 65. Highs 75 to 85. Light winds. Minimum Humidity 30 to 40 pct. .FRIDAY...Mostly clear. Slight chance of showers and thunderstorms. Lows 54 to 64. Highs 74 to 84. .SATURDAY...Mostly clear. Lows 54 to 64. Highs 76 to 86. NOTE TO USERS - ZONE 154 VENTILATION CATEGORY...MIXING HEIGHT AND TRANSPORT WINDS ARE BASED ON THE AVERAGE ACROSS THE ZONE $$ Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson